Method of and means for handling webs of flexible material



Jan. 1 1 1927.

v R. we. JOHNSTONE METHOD OF AND "ms koa HAVNDLING WEBS 0F FLEXIBLEMATERIAL Q i in%'Fi1eH Dad. 5. 1923 11v VENTOR Patented Jan. 11, 1927.

UNITED STATES 1 1,614,244 PATENT OFFICE.

ROBERT MoC- JOHNSTONE, OF RGSELLE PARK, NEW JERSEY, ASSIG-NOR TO CAMERONMACHINE COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

METHOD OF AND MEANS FOR HANDLING WEIBS OF FLEXIBLE MATERIAL.

Application filed December 3, 1923, Serial No. 678,335. Renewed. June15, 1926. I

This invention relates generally to a method of and means for handlingwebs of flexible material and has more particularly reference to amethod of and means for handling materials such as tinfoil.

In the art of making tinfoil with one polished and one dull surface, itis customary to run a double thickness of material through the mill, theouter sides of the dou ble thickness that come in contact with the rollsof the mill being highly polished and the inner sides, that are incontact with each other, being dull. The main object and feature of thisinvention is to devise an effective and simple method of and mechanismfor separating and winding the double thickness and, also, if desired,to slit the .material.

In the accompanying drawings the inven tion is disclosed in a concreteand preferred form in which- Fig. 1 is a Vertical sectional view througha slitting and winding machine embodying the invention and by means ofwhich the process may be carried on.

Fig. 2 is a fragmentary detail view of the means for driving the guidingrollers positively.

Fig. 3 is a diagrammatic View showing the process that can be carriedout in the machine.

The double thickness of material 4 consisting of webs 1 and 2 is runthrough the tinfoil rolling mill and is then wound on reel 3 whichlatter is then placed in the separating and winding machine. A'spreviously explained, the outer sides of the double thickness are highlypolished and the inner adjacent sides are dull. It is desired toseparate the double thickness of material into two single layers and towind such layers on separate winding shafts. The demands of the traderequire that the highly polished side or surface of each web be woundoutermost so that after separating the webs they are wound with oppositesides outermost on separate winding shafts.

Double thickness 4 is led over guide 5 and thence over nip roller 6 tothe underside of guide roller 7 Where the double thickness is separated,web 1 passing to winding shaft 8 and web 2 to guide roller 9 and thenceto winding shaft 10. If desired, the double thickness is slitted bycutters 11, in this inby stance acting against guide roller 7. Any sortof cutters, either shear of score, may be used and the cutting means maybe independent of or combined with the guiding or winding means as iswell understood in the art. Guide rollers 7 and 9 are positively drivenas by gears 12, 13 and 14 and rotate in opposite directions. WVindingshafts 8 and 10 are frictionally driven, also 'in opposite directions,by contact with the guide rollers, as shown, and are displaoeable as thediameter of the wound material increases and counterweighted preferablyin the manner shown in U. S. Letters Patent No. 1,256,499. It will alsobe noted that when the webs are slitted, all the sections of one layeror web are directed to one winding shaft and all the sections of theother layer or web are directed to the other winding shaft.

I claim:

1. Separating and winding mechanism for two superimposed webs offlexible material comprising: two oppositely rotating winding shafts, aguide roller for receiving the double thickness of material and forguiding one of the thicknesses to one of said winding shafts, and asecond guide roller for receiving the other thickness of material fromthe first guide roller and to guide said other thickness to said otherwinding shaft.

2. Separating and winding mechanism for two superimposed webs offlexible material comprising: two oppositely rotating winding shafts,two oppositely rotating guide rollers one adjacent to each shaft andeach of said guide rollers rotating in a direction opposite to that ofthe winding shaft to which it is adjacent, one of said guide rollersreceiving the double thickness of material and guiding one of saidthicknesses to the winding shaft adjacent wit and guiding the other ofsaid thicknesses to the other guide roller, and the other guide rollerreceiving said other thickness from the first guide roller and directingit to the winding shaft adjacent said other guide roller.

3. Separating and winding mechanism for two superimposed webs offlexible material comprising: two positively driven and oppositelyrotating guide rollers, two displaceable winding shafts one driven byfrictional contact with one roller and the other driven frictionalcontact with the other roller,

one of said guide rollers receiving the double thickness of material anddirecting one thickness to the winding shaft in contact with it anddirecting the other thickness of material to the other guide roller, andsaid other guide roller receiving said other thickness from the firstguide roller and directing it to the winding shaft in contact with saidsecond guide roller.

4. Separating and winding mechanism for two superimposed webs offlexible material comprising: two winding shafts, and guide rollers forseparating the webs and for directing one web, with one of its sidesoutermost, to one winding shaft and the other web, with the oppositeside outermost, to the other winding shaft.

5. Separating and winding mechanism for two superimposed webs offlexible material comprising: two winding shafts, and guide rollers forseparating the webs and for so directing them to the winding shafts thatboth webs are wound with the outer sides of the double thicknessoutermost, one web on one winding shaft and the other web on the otherwinding shaft.

6. The herein described method of handling flexible materials whichconsists in separating a double thickness of material while it isadvancing into two single layers, and winding one layer separately fromthe other layer with opposite sides outermost.

7. The herein described method of handling flexible --materials whichconsists in separating a double thickness of material while it isadvancing into two single layers, and winding one layer separately fromthe other layer with the outer sides of the double thickness outermost.

Signed at New York city in the borough of Brooklyn, county of Kings andState of New York, this 28 day of November, 1923.

ROBERT MoG. JOHNSTONE.

